Electronic circuit, power conversion device, driving device, vehicle, and elevator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 23, 2021
Grant Date -
Sep 26, 2019
app pub date -
Aug 24, 2018
filing date -
Mar 21, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a semiconductor device including: a semiconductor element including a first electrode, a second electrode, and a gate electrode; a surge voltage measuring unit electrically connected to the first electrode or the second electrode and configured to measure a surge voltage; a variable resistor electrically connected to the gate electrode; a comparator configured to compare a surge voltage measurement value, which is acquired by measuring the surge voltage generated by a first pulse applied to the gate electrode by the surge voltage measuring unit, with a surge voltage target value; a determination unit configured to determine a setting value of a resistance value of the variable resistor based on the comparison result by the comparator; and an instruction unit configured to instruct the setting value to the variable resistor.
First Claim
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International Classification(s)
- H02M:APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEE....
- H02P:CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATO....
- B60R:VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT ....
- B61C:LOCOMOTIVES; MOTOR RAILCARS
- B60C:VEHICLE TYRES
- G01R:MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC V....
- B66B:ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- H02H:EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
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